How to LS swap a Miata: parts list and steps

Mazda Miata (1990–2005) LS swap: parts and gotchas from our sourced guides.

1990–2005 Mazda Miata NA/NB LS swap with V8 Roadsters mounting kit: engine plates, polyurethane mounts, DOM-tube T56 crossmember with 3 exhaust-routing options; retains factory suspension/steering pickup points (V8R).

Engine: Any LS (LS2 + T56 per review); LQ4 works but needs intake, accessories and crank pulley changed to suit the chassis (V8R)

Mounts: V8 Roadsters MX5 NA/NB LSx Mounting Kit (engine plates, mounts, T56 crossmember)

Transmission: Tremec TUET16363 Magnum-F 6-speed, wide ratio (optional); Tremec TUET16362 Magnum-F 6-speed, close ratio (optional)

Watch out for: Kit is built around the T56; Tremec Magnum-F options TUET16363 (wide ratio) / TUET16362 (close ratio). TKX is dimensionally different and does NOT fit this kit (V8R). Built to order; lead times vary. Flyin' Miata stopped selling V8 swap parts.

See our engine, oil pan, transmission and wiring guides for choosing the rest of the combination.